package com.itheima.day14.day14work1;

public class Water {
    private int num;
    private final Object obj=new Object();

    public Water() {
    }

    public Water(int num) {
        this.num = num;
    }

    public int getNum() {
        return num;
    }

    public void setNum(int num) {
        this.num = num;
    }

    public Object getObj() {
        return obj;
    }


}
